A cellular network or mobile network is a radio network distributed over land areas called cells, each served by at least one fixed-location transceiver, known as a cell site or base station. In a cellular network, each cell uses a different set of frequencies from neighboring cells, to avoid ...

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1answer
89 views

Cannot log in to google account when on data (works on Wifi)

Device: Lenovo A806 with Android 4.4.2 Problem: Cannot log in to google account while on data (works on wifi) Description: Cannot open google play (connection failed, retry) or add a new google ...
0
votes
1answer
40 views

Suddenly my phone does not detect my SIM while it detects service providers' names

I am using rooted but stock Nexus 5 D820 with service provider Airtel in India. When I occasionally glanced my phone it said that the SIM is not detected. I soon discovered by various means that my ...
0
votes
1answer
23 views

Is there a way to get notify when mobile network is unreacheable?

Sometimes mobile network (cellular network) is unavailable for my phone and I won't be informed about call attempts and SMSes. Is there a way or application that notify me (by notification, vibration, ...
0
votes
2answers
30 views

My network on the android phone isn't working what is the problem now

My phone since was reset because it kept showing unfortunately android has stopped every app I selected it said the app unfortunately has stopped now my issue is ever since then my phone's network ...
0
votes
0answers
19 views

Data is connected in my Asus Zenfone 2 laser5.5. but not able to use the apps (like whatsapp, net browser etc). what to do?

Data is connected in my Asus Zenfone 2 laser5.5. but not able to use the apps (like whatsapp, net browser etc). I did the upgrade to Marshmallow yesterday. after some time the phone is creating ...
0
votes
0answers
28 views

I need Lenovo a5500 nvram

Last week I flashed my a5500-hv lenovo tablet using so flash tool and suddenly It gave me NVRAM error my simcard doesn't work and my WiFi Mac address change every time I reboot my tablet. *#06# shows ...
0
votes
0answers
10 views

How do I use international roaming

I'm at an international airport and because of that, my phone is giving me no service. I want to use international roaming to make a call but I don't know how(I don't care about the extra costs) my ...
0
votes
0answers
21 views

My sim doesn't read

After uninstalling the system phone app can't access mobile networks in settings and my phone doesn't read my sim.is there any remedy
0
votes
0answers
26 views

Dropped my Nexus 5, now no mobile network - worth repairing?

Apologies if this is the wrong community to ask in, but it seemed the most relevant. I have a Nexus 5, not exactly sure which model, but about 3 years old, I think. I dropped it a few minutes ago ...
0
votes
2answers
147 views

Does switching my phone from 3G to LTE only matter if I use mobile data?

I have a Xiaomi Redmi Note 3 Pro with Android 5.1.1 and MIUI 7.3.2.0. In my settings I have the option to choose a network type. The options are "2G", "Prefer 3G", and "Prefer LTE". I only use WiFi to ...
-1
votes
1answer
89 views

Auto refreshing the signal

When we go to the area where signal is not reachable, we experience "Emergency calls only" or "No service". But after coming-out from that area we sometime found phone is not receiving signal and ...
0
votes
1answer
28 views

Use mobile internet though connected to WLAN

On an Linux based system I created a WLAN Hotspot. I want to provide a single webpage via a webserver on this system. When I connect my Android devices to it they expect to get internet over this ...
3
votes
2answers
91 views

Missing 2G only on my Galaxy s4 I9505 on lollipop

I have a problem with receiving calls and text messages due to a weak 3G signal, now I want to make my phone and force it to work on the 2G mode only, but since I am on lollipop 5.0.1 I don't have ...
-2
votes
1answer
58 views

Smartphone to smartphone to sim communication

I have purchased a second Android smartphone because the internal memory on my first smartphone was full and I needed to use more space for apps, pictures, and videos. But the second smartphone has no ...
0
votes
1answer
65 views

How to disable only telephone network?

Is it possible to disable only the telephone network and not internet network, so as to use the smartphone as a tablet with a only SIM data? I use Android 6.0 and I have no possibility to use wi-fi, ...
0
votes
0answers
16 views

Information about all operators active in device's location

Is it possible to obtain information about all gsm networks, that are active in the location around device? I need information about the networks of those operators, that are differed from operator of ...
0
votes
0answers
65 views

Mobile Data Problem in Asus ZenFone2

So when i switch on my Mobile or Cellular Data, it switches on,as usual but when i use it, it does not work. I can receive or send any message on WhatsApp but my online games such as Clash of Clans, ...
3
votes
0answers
64 views

My cellular networks slower than USB tethering, what shoud i do?

In the first glance to my title, it doesn't really make sense because the hotspot itself should equal/faster than the client who borrow/tether the network, but due to unknown reason, it always slower, ...
0
votes
0answers
15 views

Tor Bot with Selective Routing

I've installed the TorBot application (mostly for the use of ChatSecure), and I've enabled selective routing for applications I want to use For (Onion routing?), such as Facebook, ChatSecure etc. ...
0
votes
0answers
69 views

Note 5 reading only one SIM card

My Samsung Galaxy Note 5 was working fine until one day when I used a new SIM card for one mobile network instead of the one I lost. That SIM wasn't recognized by the phone and it was showing "...
0
votes
1answer
46 views

Is there a way to determine what mobile network frequency band is in use?

I use a Nexus 5X on T-Mobile's network in the United States. Is there a way to tell what frequency band is in use when using LTE? A Sony Xperia Z3 compact also on T-Mobile is unable to use LTE in many ...
4
votes
0answers
238 views

Aggregating two 4G/3G data links from 2 different sims?

Having two 4G capable sims -from truely two different operators (no virtual carriers at all)- and a Dual Active sim phone (Zenfone 2 Laser), I want to do true load balancing with a 1 sim + 1 sim 4G/3G ...
0
votes
0answers
117 views

LG Leon H320 error “The network is unavailable!”

My LG Leon is running Android 5.0.1 and shows every 30 min to 1 hr the above mentioned error without any particular reason. I'm just browsing the internet or running some app, and then suddenly a pop-...
0
votes
1answer
88 views

Nexus 9 - How do I change the cellular band?

I've got an international edition 32GB Nexus 9 LTE. It appears to be unable to connect to 3.5G / HSPA+ networks, as a result, I get poor data speeds (3G is pretty slow for my requirements). I've got ...
1
vote
1answer
77 views

Forward tethered device?

Alright, so I have a raspberry pi (192.168.42.53 on rndis0) that is tethered to an android tablet to access the internet. The tablet is connected to my home LAN via WiFi (on wlan0). How do I forward ...
2
votes
1answer
159 views

Can cellular network providers detect the phone model/make when their sim is activated?

When the user inserts the sim card and activates, can the cellular network provider detect what phone the user uses? Like say Motorola Droid. Or at least the phone is a smartphone or not?
1
vote
0answers
88 views

Dual active LTE + multipath tcp + VPN

I travel a lot and having a constantly reliable Internet connection is high on my priority list. Tethering from my phone is often times spotty. Different carriers are good in some areas and poor in ...
2
votes
0answers
38 views

Nexus 4 3G not working

The phone is running AOSP Marshmallow, it is rooted and has Xposed installed. Mobile operator is Latvian Mobile Phone with working data plan. I can send and receive calls and texts and use WiFi. So ...
0
votes
0answers
151 views

Why is my LG G3 receiving text messages with the wrong words?

I am using the LG G3 on AT&T's network. When receiving messages from a Galaxy S5, also on AT&T's network, the last part of the message shows words that the other person did not send to me. If ...
0
votes
2answers
138 views

Will it work if I set up a http/ssh/ftp server on my android phone using the cellular mobile network?

I can set up a ssh server on my android phone, by running SSH Server by Ice Code App on my Android 4.4.2 phone over my home WiFi network. So my laptop can access the my phone via ssh in the same WiFi ...
0
votes
1answer
2k views

Will my new Xiaomi RedMi Note 2 prime work for LTE network?

I just bought this smartphone, and I am confused if it will work in my area and if it will work for 4G and LTE. I called the support of T-Mobile, and they said if it configured correctlly, it will ...
0
votes
0answers
42 views

Experiencing frequent network[operator] disconnects on Nexus 4

I frequently find my nexus 4 showing "Emergency calls only" as the network gets disconnected, and 90% of the times it does not automatically connects. Whenever i am travelling, this problem is more ...
0
votes
1answer
215 views

LG G2 not picking 3G and GSM Signals

I just bought an LG G2 32GB Version from China. The problem is it does not pick up any network connection, it keeps saying Searching for service. I just noticed the box is written 100%LTE. Is there ...
-1
votes
1answer
718 views

Is it possible to adblock while on mobile data?

I can use AdBlock Plus to block ads on wifi. Is there a way to do it while on mobile data? I'd like to use it in Chrome, if possible.
0
votes
1answer
1k views

Mobile network sign disappears, replaced by “stop sign” icon

I am using Samsung Galaxy Note 10.1 N8000 device. I have SIM card inserted for mobile data usage. First time, it is working as I captured status bar image as shown with mobile data sign :- but ...
1
vote
0answers
267 views

GPS is not getting fix signal

I have a couple devices (Moto e XT1021, Moto e 2nd gen). Suddenly the app running on these devices stopped working, due the device stop receiving gps changes updates. I did some research and tests, ...
0
votes
0answers
177 views

Galaxy s5 network mode disabled

I recently bought a Samsung Galaxy S5 (SM-G900R7) from Swappa.com and as per the seller the phone has a clean IMEI (which is true as per multiple website checks) and is unlocked**(I have a doubt here)*...
1
vote
0answers
169 views

“com.android.phone has stopped” after reboot, cured by changing Preferred Network — how to make permanent

Phone info: "Google Play Edition" Galaxy S4 - GT-I9505ZWG Android 5.1, build number LMY470.S008.150802 AT&T, Philadelphia After rebooting the phone, I get the "com.android.phone has stopped" ...
0
votes
0answers
262 views

What is my cellular network connection status?

I am using wifi and have disabled data on Android 4.4.2. My phone status shows that my mobile network type is somtimes 1xRT and somtimes EVDO but not both, while both voice and data are in service. ...
0
votes
0answers
222 views

“No Service” after device shutdown - software or hardware issue?

I own an LG P880 (Optimus 4X HD) device running cm-11-20150824-NIGHTLY, which was installed about a month ago and worked fine so far. Followed by low battery the device was automatically turned off. ...
0
votes
0answers
77 views

Port forward in external ip

How to forward ports in external ip. I tried port forwarder but it forwards my internal ip ports like 10.xxx.xx.xxx to 192.168.0.1 How to actually forward ports To my external ip? so that i could ...
1
vote
0answers
88 views

Private communication over wifi but internet over 3G

I have a raspberry pi which creates an WiFi hotspot and I want my android app to communicate with the pi over that connection. The big problem now is that the pi has no internet access so I would like ...
1
vote
1answer
452 views

Cannot connect to Network - EMERGENCY CALLS ONLY

I was trying out some ROMs which I downloaded from needrom.com. At first it was fine. Then when I flashed a particular ROM, I started getting "INVALID IMEI" and could not connect to the network ...
0
votes
0answers
686 views

Can't connect to mobile network on Sony Xperia Z Ultra

Device: Sony Xperia Z Ultra Carrier: The Peoples Operator (Same issue when tested with EE as well) Android Version: 5.0 Lolipop I recently lost the SIM card tray for my device, and Sony sent me out ...
0
votes
0answers
54 views

Issues when registering to mobile network abroad

I have a Motorola Moto G with Android 5.02, and a subscription for Vodafone and everything is working fine when I'm connecting to the mobile network in my country (Romania), but when I travel abroad I ...
0
votes
0answers
37 views

Samsung Galaxy Nexus running Android 4.3 shows “no network” after doing factory reset

I got my Samsung Galaxy Nexus with Android 4.3 from my mum, just yesterday. I factory reset it before using it and afterwards I inserted my SIM card and it shows "no network ". I manually searched, ...
0
votes
0answers
131 views

Data network problem: Chrome timeouts while Twitter fine

My OnePlus One cellphone works fine with WiFi. Android 5.0.2, OxigenOS 1.0.0. All apps are updated. However, when on data (3G or LTE), Chrome, Google Play and a few other apps can not communicate ...
4
votes
1answer
5k views

Power Efficiency: Network mode 4G LTE vs 3G GSM/WCDMA?

Which network mode is more power efficient: LTE 4G or GSM 3G? I assume using a 4G network uses more power even if you don't use the data connection, as from the little I understand about mobile ...
1
vote
1answer
252 views

What's the complete map from letter to mobile network type?

I was wondering about what all letters mean. Specifically the "R" that I'm currently on. I found this summary by some provider, but it doesn't contain the R-symbol that I'm on right now. These are ...
3
votes
2answers
841 views

Why does my phone say I am roaming when connected to my “home” network?

I recently got a new phone, the Elephone P7000 and it runs stock android 5.0. Everything seems to work perfectly apart from the fact that most of the time the top status bar says I am roaming. When I ...